4040400738 has 16 divisors (see below), whose sum is σ = 8815419936. Its totient is φ = 1224363840.

The previous prime is 4040400737. The next prime is 4040400739. The reversal of 4040400738 is 8370040404.

It is an interprime number because it is at equal distance from previous prime (4040400737) and next prime (4040400739).

It is not an unprimeable number, because it can be changed into a prime (4040400737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30609031 + ... + 30609162.

It is an arithmetic number, because the mean of its divisors is an integer number (550963746).

Almost surely, 2^4040400738 is an apocalyptic number.

4040400738 is an abundant number, since it is smaller than the sum of its proper divisors (4775019198).

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

4040400738 is a wasteful number, since it uses less digits than its factorization.

4040400738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61218209.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 4040400738 is about 63564.1466394382. The cubic root of 4040400738 is about 1592.7275071228.

The spelling of 4040400738 in words is "four billion, forty million, four hundred thousand, seven hundred thirty-eight".