47400390 has 80 divisors (see below), whose sum is σ = 128676240. Its totient is φ = 12519360.

The previous prime is 47400377. The next prime is 47400427. The reversal of 47400390 is 9300474.

47400390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 112380 + ... + 112800.

It is an arithmetic number, because the mean of its divisors is an integer number (1608453).

Almost surely, 2^47400390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47400390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64338120).

47400390 is an abundant number, since it is smaller than the sum of its proper divisors (81275850).

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

47400390 is a wasteful number, since it uses less digits than its factorization.

47400390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 47400390 is about 6884.7941145687. The cubic root of 47400390 is about 361.9044903347.

The spelling of 47400390 in words is "forty-seven million, four hundred thousand, three hundred ninety".