67748040 has 48 divisors (see below), whose sum is σ = 220182300. Its totient is φ = 18066048.

The previous prime is 67748029. The next prime is 67748071. The reversal of 67748040 is 4084776.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62631396 + 5116644 = 7914^2 + 2262^2 .

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 = 67747986 and 67748004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93735 + ... + 94454.

Almost surely, 2^67748040 is an apocalyptic number.

67748040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67748040 is an abundant number, since it is smaller than the sum of its proper divisors (152434260).

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

67748040 is a wasteful number, since it uses less digits than its factorization.

67748040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188206 (or 188199 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 67748040 is about 8230.9197541952. The cubic root of 67748040 is about 407.6607618425.

The spelling of 67748040 in words is "sixty-seven million, seven hundred forty-eight thousand, forty".