1040402034 has 96 divisors (see below), whose sum is σ = 2632581120. Its totient is φ = 290830176.

The previous prime is 1040402029. The next prime is 1040402039. The reversal of 1040402034 is 4302040401.

It is an interprime number because it is at equal distance from previous prime (1040402029) and next prime (1040402039).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1040401998 and 1040402016.

It is not an unprimeable number, because it can be changed into a prime (1040402039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1263747 + ... + 1264569.

It is an arithmetic number, because the mean of its divisors is an integer number (27422720).

Almost surely, 2^1040402034 is an apocalyptic number.

1040402034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040402034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316290560).

1040402034 is an abundant number, since it is smaller than the sum of its proper divisors (1592179086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1040402034 is a wasteful number, since it uses less digits than its factorization.

1040402034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1040402034 is about 32255.2636634705. The cubic root of 1040402034 is about 1013.2899397344.

Adding to 1040402034 its reverse (4302040401), we get a palindrome (5342442435).

The spelling of 1040402034 in words is "one billion, forty million, four hundred two thousand, thirty-four".