46778992 has 40 divisors (see below), whose sum is σ = 98118720. Its totient is φ = 21477120.

The previous prime is 46778971. The next prime is 46778993. The reversal of 46778992 is 29987764.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46778993) 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, 49242 + ... + 50182.

It is an arithmetic number, because the mean of its divisors is an integer number (2452968).

Almost surely, 2^46778992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46778992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49059360).

46778992 is an abundant number, since it is smaller than the sum of its proper divisors (51339728).

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

46778992 is a wasteful number, since it uses less digits than its factorization.

46778992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201 (or 1195 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The square root of 46778992 is about 6839.5169420069. The cubic root of 46778992 is about 360.3160598844.

The spelling of 46778992 in words is "forty-six million, seven hundred seventy-eight thousand, nine hundred ninety-two".