1225577408 has 28 divisors (see below), whose sum is σ = 2653098072. Its totient is φ = 557080320.

The previous prime is 1225577399. The next prime is 1225577417. The reversal of 1225577408 is 8047755221.

It is an interprime number because it is at equal distance from previous prime (1225577399) and next prime (1225577417).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869735 + ... + 871142.

Almost surely, 2^1225577408 is an apocalyptic number.

It is an amenable number.

1225577408 is an abundant number, since it is smaller than the sum of its proper divisors (1427520664).

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

1225577408 is a wasteful number, since it uses less digits than its factorization.

1225577408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740900 (or 1740890 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 1225577408 is about 35008.2477139316. The cubic root of 1225577408 is about 1070.1555682620.

The spelling of 1225577408 in words is "one billion, two hundred twenty-five million, five hundred seventy-seven thousand, four hundred eight".