47405040 has 40 divisors (see below), whose sum is σ = 146956368. Its totient is φ = 12641280.

The previous prime is 47405011. The next prime is 47405069. The reversal of 47405040 is 4050474.

It is an interprime number because it is at equal distance from previous prime (47405011) and next prime (47405069).

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 47405040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98521 + ... + 99000.

Almost surely, 2^47405040 is an apocalyptic number.

47405040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47405040 is an abundant number, since it is smaller than the sum of its proper divisors (99551328).

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

47405040 is a wasteful number, since it uses less digits than its factorization.

47405040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197537 (or 197531 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 47405040 is about 6885.1318070172. The cubic root of 47405040 is about 361.9163242799.

The spelling of 47405040 in words is "forty-seven million, four hundred five thousand, forty".