40748520 has 128 divisors (see below), whose sum is σ = 128304000. Its totient is φ = 10343424.

The previous prime is 40748503. The next prime is 40748537. The reversal of 40748520 is 2584704.

It is an interprime number because it is at equal distance from previous prime (40748503) and next prime (40748537).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273406 + ... + 273554.

It is an arithmetic number, because the mean of its divisors is an integer number (1002375).

Almost surely, 2^40748520 is an apocalyptic number.

40748520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40748520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64152000).

40748520 is an abundant number, since it is smaller than the sum of its proper divisors (87555480).

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

40748520 is a wasteful number, since it uses less digits than its factorization.

40748520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40748520 is about 6383.4567438027. The cubic root of 40748520 is about 344.1152714467.

The spelling of 40748520 in words is "forty million, seven hundred forty-eight thousand, five hundred twenty".