1400031420 has 48 divisors (see below), whose sum is σ = 3938702208. Its totient is φ = 371568960.

The previous prime is 1400031407. The next prime is 1400031421. The reversal of 1400031420 is 241300041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1400031420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400031421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42634 + ... + 67953.

It is an arithmetic number, because the mean of its divisors is an integer number (82056296).

Almost surely, 2^1400031420 is an apocalyptic number.

1400031420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400031420 is an abundant number, since it is smaller than the sum of its proper divisors (2538670788).

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

1400031420 is a wasteful number, since it uses less digits than its factorization.

1400031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110810 (or 110808 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1400031420 is about 37416.9937327947. The cubic root of 1400031420 is about 1118.6973108775.

Adding to 1400031420 its reverse (241300041), we get a palindrome (1641331461).

The spelling of 1400031420 in words is "one billion, four hundred million, thirty-one thousand, four hundred twenty".