1974278850 has 96 divisors (see below), whose sum is σ = 5232522240. Its totient is φ = 490890240.

The previous prime is 1974278837. The next prime is 1974278869. The reversal of 1974278850 is 588724791.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 1974278793 and 1974278802.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 274399 + ... + 281501.

It is an arithmetic number, because the mean of its divisors is an integer number (54505440).

Almost surely, 2^1974278850 is an apocalyptic number.

1974278850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1974278850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2616261120).

1974278850 is an abundant number, since it is smaller than the sum of its proper divisors (3258243390).

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

1974278850 is a wasteful number, since it uses less digits than its factorization.

1974278850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7244 (or 7239 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The square root of 1974278850 is about 44432.8577743993. The cubic root of 1974278850 is about 1254.4966262191.

The spelling of 1974278850 in words is "one billion, nine hundred seventy-four million, two hundred seventy-eight thousand, eight hundred fifty".