40000250000 has 70 divisors (see below), whose sum is σ = 96874970922. Its totient is φ = 16000000000.

The previous prime is 40000249963. The next prime is 40000250021. The reversal of 40000250000 is 5200004.

It can be written as a sum of positive squares in 7 ways, for example, as 35109765376 + 4890484624 = 187376^2 + 69932^2 .

It is a sliding number, since 40000250000 = 250000 + 40000000000 and 1/250000 + 1/40000000000 = 0.0000040000250000.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 170000 + ... + 330000.

Almost surely, 2^40000250000 is an apocalyptic number.

40000250000 is a gapful number since it is divisible by the number (40) 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 40000250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48437485461).

40000250000 is an abundant number, since it is smaller than the sum of its proper divisors (56874720922).

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

40000250000 is an frugal number, since it uses more digits than its factorization.

40000250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160039 (or 160008 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

Adding to 40000250000 its reverse (5200004), we get a palindrome (40005450004).

It can be divided in two parts, 40000 and 250000, that multiplied together give a 10-th power (10000000000 = 10¹⁰).

The spelling of 40000250000 in words is "forty billion, two hundred fifty thousand".