1400012402 has 8 divisors (see below), whose sum is σ = 2101552236. Its totient is φ = 699494992.

The previous prime is 1400012389. The next prime is 1400012413. The reversal of 1400012402 is 2042100041.

It can be written as a sum of positive squares in 2 ways, for example, as 1399433281 + 579121 = 37409^2 + 761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252173 + ... + 257664.

Almost surely, 2^1400012402 is an apocalyptic number.

1400012402 is a deficient number, since it is larger than the sum of its proper divisors (701539834).

1400012402 is a wasteful number, since it uses less digits than its factorization.

1400012402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511212.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1400012402 is about 37416.7395960685. The cubic root of 1400012402 is about 1118.6922454003.

Adding to 1400012402 its reverse (2042100041), we get a palindrome (3442112443).

The spelling of 1400012402 in words is "one billion, four hundred million, twelve thousand, four hundred two".