1148020400 has 30 divisors (see below), whose sum is σ = 2758119972. Its totient is φ = 459208000.

The previous prime is 1148020399. The next prime is 1148020429. The reversal of 1148020400 is 40208411.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1434626 + ... + 1435425.

Almost surely, 2^1148020400 is an apocalyptic number.

1148020400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148020400 is an abundant number, since it is smaller than the sum of its proper divisors (1610099572).

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

1148020400 is a wasteful number, since it uses less digits than its factorization.

1148020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870069 (or 2870058 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1148020400 is about 33882.4497343389. The cubic root of 1148020400 is about 1047.0880466680.

Adding to 1148020400 its reverse (40208411), we get a palindrome (1188228811).

The spelling of 1148020400 in words is "one billion, one hundred forty-eight million, twenty thousand, four hundred".