47242736 has 20 divisors (see below), whose sum is σ = 95513232. Its totient is φ = 22594176.

The previous prime is 47242709. The next prime is 47242751. The reversal of 47242736 is 63724274.

It is a super-2 number, since 2×47242736² = 4463752209531392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47242696 and 47242705.

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, 63821 + ... + 64556.

Almost surely, 2^47242736 is an apocalyptic number.

47242736 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

47242736 is an abundant number, since it is smaller than the sum of its proper divisors (48270496).

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

47242736 is a wasteful number, since it uses less digits than its factorization.

47242736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128408 (or 128402 counting only the distinct ones).

The product of its digits is 56448, while the sum is 35.

The square root of 47242736 is about 6873.3351438730. The cubic root of 47242736 is about 361.5028124616.

The spelling of 47242736 in words is "forty-seven million, two hundred forty-two thousand, seven hundred thirty-six".