73649020 has 12 divisors (see below), whose sum is σ = 154662984. Its totient is φ = 29459600.

The previous prime is 73648999. The next prime is 73649029. The reversal of 73649020 is 2094637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73649029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1841206 + ... + 1841245.

It is an arithmetic number, because the mean of its divisors is an integer number (12888582).

Almost surely, 2^73649020 is an apocalyptic number.

It is an amenable number.

73649020 is an abundant number, since it is smaller than the sum of its proper divisors (81013964).

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

73649020 is a wasteful number, since it uses less digits than its factorization.

73649020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682460 (or 3682458 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 73649020 is about 8581.9007218681. The cubic root of 73649020 is about 419.1688400080.

It can be divided in two parts, 7364 and 9020, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 73649020 in words is "seventy-three million, six hundred forty-nine thousand, twenty".