20454070 has 96 divisors (see below), whose sum is σ = 48837600. Its totient is φ = 6132672.

The previous prime is 20454067. The next prime is 20454097. The reversal of 20454070 is 7045402.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1076521 + ... + 1076539.

It is an arithmetic number, because the mean of its divisors is an integer number (508725).

Almost surely, 2^20454070 is an apocalyptic number.

20454070 is an abundant number, since it is smaller than the sum of its proper divisors (28383530).

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

20454070 is a wasteful number, since it uses less digits than its factorization.

20454070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 20454070 is about 4522.6176048833. The cubic root of 20454070 is about 273.4806347951.

Adding to 20454070 its reverse (7045402), we get a palindrome (27499472).

The spelling of 20454070 in words is "twenty million, four hundred fifty-four thousand, seventy".