147699640 has 32 divisors (see below), whose sum is σ = 362536560. Its totient is φ = 53708800.

The previous prime is 147699637. The next prime is 147699641. The reversal of 147699640 is 46996741.

147699640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×147699640² = 43630367312259200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147699641) 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, 167401 + ... + 168280.

Almost surely, 2^147699640 is an apocalyptic number.

147699640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147699640 is an abundant number, since it is smaller than the sum of its proper divisors (214836920).

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

147699640 is a wasteful number, since it uses less digits than its factorization.

147699640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335703 (or 335699 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 147699640 is about 12153.1740709989. The cubic root of 147699640 is about 528.5991724976.

The spelling of 147699640 in words is "one hundred forty-seven million, six hundred ninety-nine thousand, six hundred forty".