140400004 has 12 divisors (see below), whose sum is σ = 256382784. Its totient is φ = 67147784.

The previous prime is 140399993. The next prime is 140400019. The reversal of 140400004 is 400004041.

It is a happy number.

It is a super-2 number, since 2×140400004² = 39424322246400032, which contains 22 as substring.

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, 762952 + ... + 763135.

It is an arithmetic number, because the mean of its divisors is an integer number (21365232).

Almost surely, 2^140400004 is an apocalyptic number.

It is an amenable number.

140400004 is a deficient number, since it is larger than the sum of its proper divisors (115982780).

140400004 is a wasteful number, since it uses less digits than its factorization.

140400004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526114 (or 1526112 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 140400004 is about 11849.0507636688. The cubic root of 140400004 is about 519.7434681404.

Adding to 140400004 its reverse (400004041), we get a palindrome (540404045).

The spelling of 140400004 in words is "one hundred forty million, four hundred thousand, four".