1532785990 has 16 divisors (see below), whose sum is σ = 2761856352. Its totient is φ = 612482944.

The previous prime is 1532785973. The next prime is 1532786063. The reversal of 1532785990 is 995872351.

It is a super-2 number, since 2×1532785990² = 4698865782280560200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68674 + ... + 88213.

It is an arithmetic number, because the mean of its divisors is an integer number (172616022).

Almost surely, 2^1532785990 is an apocalyptic number.

1532785990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1532785990 is a deficient number, since it is larger than the sum of its proper divisors (1229070362).

1532785990 is a wasteful number, since it uses less digits than its factorization.

1532785990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157871.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 1532785990 is about 39150.8108472864. The cubic root of 1532785990 is about 1152.9943365533.

The spelling of 1532785990 in words is "one billion, five hundred thirty-two million, seven hundred eighty-five thousand, nine hundred ninety".