1622314945 has 8 divisors (see below), whose sum is σ = 1947634920. Its totient is φ = 1297280640.

The previous prime is 1622314919. The next prime is 1622314949. The reversal of 1622314945 is 5494132261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 315275536 + 1307039409 = 17756^2 + 36153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1622314945 - 2⁷ = 1622314817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1622314949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58716 + ... + 81805.

It is an arithmetic number, because the mean of its divisors is an integer number (243454365).

Almost surely, 2^1622314945 is an apocalyptic number.

It is an amenable number.

1622314945 is a deficient number, since it is larger than the sum of its proper divisors (325319975).

1622314945 is a wasteful number, since it uses less digits than its factorization.

1622314945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142835.

The product of its digits is 51840, while the sum is 37.

The square root of 1622314945 is about 40277.9709642877. The cubic root of 1622314945 is about 1175.0194522206.

The spelling of 1622314945 in words is "one billion, six hundred twenty-two million, three hundred fourteen thousand, nine hundred forty-five".