651067740 has 48 divisors (see below), whose sum is σ = 2025545760. Its totient is φ = 173617920.

The previous prime is 651067733. The next prime is 651067763. The reversal of 651067740 is 47760156.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 651067695 and 651067704.

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, 602301 + ... + 603380.

It is an arithmetic number, because the mean of its divisors is an integer number (42198870).

Almost surely, 2^651067740 is an apocalyptic number.

651067740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

651067740 is an abundant number, since it is smaller than the sum of its proper divisors (1374478020).

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

651067740 is a wasteful number, since it uses less digits than its factorization.

651067740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205699 (or 1205691 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 651067740 is about 25516.0290797765. The cubic root of 651067740 is about 866.7131628572.

The spelling of 651067740 in words is "six hundred fifty-one million, sixty-seven thousand, seven hundred forty".