44978454 has 24 divisors (see below), whose sum is σ = 98159880. Its totient is φ = 14884128.

The previous prime is 44978441. The next prime is 44978467. The reversal of 44978454 is 45487944.

It is an interprime number because it is at equal distance from previous prime (44978441) and next prime (44978467).

It is a super-2 number, since 2×44978454² = 4046122648460232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6487 + ... + 11490.

It is an arithmetic number, because the mean of its divisors is an integer number (4089995).

Almost surely, 2^44978454 is an apocalyptic number.

44978454 is an abundant number, since it is smaller than the sum of its proper divisors (53181426).

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

44978454 is a wasteful number, since it uses less digits than its factorization.

44978454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18124 (or 18121 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 44978454 is about 6706.5977962004. The cubic root of 44978454 is about 355.6325533693.

The spelling of 44978454 in words is "forty-four million, nine hundred seventy-eight thousand, four hundred fifty-four".