1030402240 has 112 divisors (see below), whose sum is σ = 2850513984. Its totient is φ = 347443200.

The previous prime is 1030402237. The next prime is 1030402267. The reversal of 1030402240 is 422040301.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132870 + ... + 140410.

Almost surely, 2^1030402240 is an apocalyptic number.

1030402240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425256992).

1030402240 is an abundant number, since it is smaller than the sum of its proper divisors (1820111744).

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

1030402240 is an equidigital number, since it uses as much as digits as its factorization.

1030402240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626 (or 7616 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1030402240 is about 32099.8791274983. The cubic root of 1030402240 is about 1010.0330806405.

Adding to 1030402240 its reverse (422040301), we get a palindrome (1452442541).

The spelling of 1030402240 in words is "one billion, thirty million, four hundred two thousand, two hundred forty".