1001898455 has 16 divisors (see below), whose sum is σ = 1246257408. Its totient is φ = 772416000.

The previous prime is 1001898449. The next prime is 1001898479. The reversal of 1001898455 is 5548981001.

1001898455 = 5670² + 5671² + ... + 5700².

It is not a de Polignac number, because 1001898455 - 2¹⁴ = 1001882071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23945 + ... + 50765.

It is an arithmetic number, because the mean of its divisors is an integer number (77891088).

Almost surely, 2^1001898455 is an apocalyptic number.

1001898455 is a deficient number, since it is larger than the sum of its proper divisors (244358953).

1001898455 is a wasteful number, since it uses less digits than its factorization.

1001898455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27098.

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 1001898455 is about 31652.7795777875. The cubic root of 1001898455 is about 1000.6324182961.

The spelling of 1001898455 in words is "one billion, one million, eight hundred ninety-eight thousand, four hundred fifty-five".