1540814732 has 12 divisors (see below), whose sum is σ = 2700828816. Its totient is φ = 769149360.

The previous prime is 1540814729. The next prime is 1540814749. The reversal of 1540814732 is 2374180451.

It is a super-2 number, since 2×1540814732² = 4748220076696463648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1540814692 and 1540814701.

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, 311744 + ... + 316647.

It is an arithmetic number, because the mean of its divisors is an integer number (225069068).

Almost surely, 2^1540814732 is an apocalyptic number.

It is an amenable number.

1540814732 is a deficient number, since it is larger than the sum of its proper divisors (1160014084).

1540814732 is a wasteful number, since it uses less digits than its factorization.

1540814732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629008 (or 629006 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 1540814732 is about 39253.2130149877. The cubic root of 1540814732 is about 1155.0039621810.

The spelling of 1540814732 in words is "one billion, five hundred forty million, eight hundred fourteen thousand, seven hundred thirty-two".