51276940 has 48 divisors (see below), whose sum is σ = 126514080. Its totient is φ = 17210880.

The previous prime is 51276899. The next prime is 51276949. The reversal of 51276940 is 4967215.

It is a junction number, because it is equal to n+sod(n) for n = 51276896 and 51276905.

It is not an unprimeable number, because it can be changed into a prime (51276949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6105 + ... + 11824.

It is an arithmetic number, because the mean of its divisors is an integer number (2635710).

Almost surely, 2^51276940 is an apocalyptic number.

It is an amenable number.

51276940 is an abundant number, since it is smaller than the sum of its proper divisors (75237140).

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

51276940 is a wasteful number, since it uses less digits than its factorization.

51276940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17962 (or 17960 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 51276940 is about 7160.7918556540. The cubic root of 51276940 is about 371.5130155987.

The spelling of 51276940 in words is "fifty-one million, two hundred seventy-six thousand, nine hundred forty".