746136540 has 72 divisors (see below), whose sum is σ = 2267341440. Its totient is φ = 198612864.

The previous prime is 746136539. The next prime is 746136541. The reversal of 746136540 is 45631647.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (746136539) and next prime (746136541).

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 = 746136495 and 746136504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746136541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105846 + ... + 112674.

Almost surely, 2^746136540 is an apocalyptic number.

It is a pronic number, being equal to 27315×27316.

It is an amenable number.

746136540 is an abundant number, since it is smaller than the sum of its proper divisors (1521204900).

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

746136540 is a wasteful number, since it uses less digits than its factorization.

746136540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7451 (or 7446 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 746136540 is about 27315.4999954238. The cubic root of 746136540 is about 906.9975270876.

The spelling of 746136540 in words is "seven hundred forty-six million, one hundred thirty-six thousand, five hundred forty".