1622412072 has 32 divisors (see below), whose sum is σ = 4506700800. Its totient is φ = 540803952.

The previous prime is 1622412053. The next prime is 1622412073. The reversal of 1622412072 is 2702142261.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1622412073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3755368 + ... + 3755799.

It is an arithmetic number, because the mean of its divisors is an integer number (140834400).

Almost surely, 2^1622412072 is an apocalyptic number.

1622412072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1622412072 is an abundant number, since it is smaller than the sum of its proper divisors (2884288728).

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

1622412072 is a wasteful number, since it uses less digits than its factorization.

1622412072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7511182 (or 7511172 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1622412072 is about 40279.1766549417. The cubic root of 1622412072 is about 1175.0429009838.

The spelling of 1622412072 in words is "one billion, six hundred twenty-two million, four hundred twelve thousand, seventy-two".