40013402 has 16 divisors (see below), whose sum is σ = 70513632. Its totient is φ = 16788720.

The previous prime is 40013371. The next prime is 40013419. The reversal of 40013402 is 20431004.

It is a super-2 number, since 2×40013402² = 3202144679227208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69668 + ... + 70239.

It is an arithmetic number, because the mean of its divisors is an integer number (4407102).

Almost surely, 2^40013402 is an apocalyptic number.

40013402 is a deficient number, since it is larger than the sum of its proper divisors (30500230).

40013402 is a wasteful number, since it uses less digits than its factorization.

40013402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139933.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40013402 is about 6325.6147527335. The cubic root of 40013402 is about 342.0333802331.

Adding to 40013402 its reverse (20431004), we get a palindrome (60444406).

The spelling of 40013402 in words is "forty million, thirteen thousand, four hundred two".