1954465980 has 48 divisors (see below), whose sum is σ = 5486219424. Its totient is φ = 519884800.

The previous prime is 1954465973. The next prime is 1954466051. The reversal of 1954465980 is 895644591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16557 + ... + 64676.

It is an arithmetic number, because the mean of its divisors is an integer number (114296238).

Almost surely, 2^1954465980 is an apocalyptic number.

1954465980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1954465980 is an abundant number, since it is smaller than the sum of its proper divisors (3531753444).

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

1954465980 is a wasteful number, since it uses less digits than its factorization.

1954465980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81646 (or 81644 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 1954465980 is about 44209.3426777644. The cubic root of 1954465980 is about 1250.2860102868.

The spelling of 1954465980 in words is "one billion, nine hundred fifty-four million, four hundred sixty-five thousand, nine hundred eighty".