1249076400 has 480 divisors, whose sum is σ = 4882187520. Its totient is φ = 268800000.

The previous prime is 1249076363. The next prime is 1249076407. The reversal of 1249076400 is 46709421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1249076407) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4976275 + ... + 4976525.

It is an arithmetic number, because the mean of its divisors is an integer number (10171224).

Almost surely, 2^1249076400 is an apocalyptic number.

1249076400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1249076400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2441093760).

1249076400 is an abundant number, since it is smaller than the sum of its proper divisors (3633111120).

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

1249076400 is a wasteful number, since it uses less digits than its factorization.

1249076400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1249076400 is about 35342.2749692206. The cubic root of 1249076400 is about 1076.9519681940.

The spelling of 1249076400 in words is "one billion, two hundred forty-nine million, seventy-six thousand, four hundred".