1400040536 has 16 divisors (see below), whose sum is σ = 2763238200. Its totient is φ = 663177024.

The previous prime is 1400040503. The next prime is 1400040547. The reversal of 1400040536 is 6350400041.

It is a happy number.

It is a super-2 number, since 2×1400040536² = 3920227004886334592, which contains 22 as substring.

It is a congruent number.

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, 4605245 + ... + 4605548.

Almost surely, 2^1400040536 is an apocalyptic number.

It is an amenable number.

1400040536 is a deficient number, since it is larger than the sum of its proper divisors (1363197664).

1400040536 is a wasteful number, since it uses less digits than its factorization.

1400040536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210818 (or 9210814 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1400040536 is about 37417.1155489036. The cubic root of 1400040536 is about 1118.6997389236.

Adding to 1400040536 its reverse (6350400041), we get a palindrome (7750440577).

The spelling of 1400040536 in words is "one billion, four hundred million, forty thousand, five hundred thirty-six".