47320240 has 40 divisors (see below), whose sum is σ = 120023568. Its totient is φ = 17207040.

The previous prime is 47320237. The next prime is 47320243. The reversal of 47320240 is 4202374.

It is an interprime number because it is at equal distance from previous prime (47320237) and next prime (47320243).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×47320240² = 4478410227315200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (47320243) 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, 26007 + ... + 27766.

Almost surely, 2^47320240 is an apocalyptic number.

47320240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47320240 is an abundant number, since it is smaller than the sum of its proper divisors (72703328).

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

47320240 is a wasteful number, since it uses less digits than its factorization.

47320240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53797 (or 53791 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 47320240 is about 6878.9708532600. The cubic root of 47320240 is about 361.7003920877.

The spelling of 47320240 in words is "forty-seven million, three hundred twenty thousand, two hundred forty".